Parameters of engines and gearbox correspond to real. Chassis options realistic as far as it allows the game engine.

As the game ratios gearbox and drive axles are registered in a single file, we had to make some identical gearboxes with different final drive ratio.
After the name of each transmission, I have two options - FG (first transmission gear ratio) and D (differential gear ratio).
The higher differential ratio (D), the more thrust but less top speed.

The archive contains a supplement addons to the trailers from Jazzycat which increased the mass of more than 100 cargoes.
The main modes you can download on the website of the author (Jazzycat).

Tested on 1.21 - 1.24
Map: TSM

Since the description of the mod authors made no mention of the ban on changes in their modes, as well as publication of modified versions of their mod, I think that copyright is not infringed by a chassis that the model has not changed.